Home / 215,691.54-323,539.36-57,919.98

Finding the Fourth Proportional to 215,691.54, 323,539.36 and 57,919.98

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Solution

The fourth proportional to 215,691.54, 323,539.36 and 57,919.98 is: 86,880.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,691.54 : 323,539.36 = 57,919.98 : x
  2. Step 2: Convert to fraction form
    215,691.54/323,539.36 = 57,919.98/x
  3. Step 3: Cross multiply
    215,691.54x = 323,539.36 × 57,919.98
  4. Step 4: Simplify right side
    215,691.54x = 18,739,393,260.41
  5. Step 5: Solve for x
    x = 18,739,393,260.41/215,691.54
  6. Step 6: Final answer
    x = 86,880.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.